Underframe for railway-cars.



P. M. KLING,

UN ERFRAME FOR RAILWAY CARS. APPLIGATION FILED JULY1G,1914.

Patented Feb Z SHEETS- P. M. KLING. UNDERFRAME FOR RAILWAY CARS.

APPLICATION FILED JULY16,1914.

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Applicatian filed July 16.,

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11115. sad 1n angle bar 1 nnchcn In pracwooden center 69 the 1A sic sills, bolsters and needle beam ties, still further increase the strength and rigidity of the structure and insure the united effort of-the four center members,--the two wooden center sills and their two steel reinforcementsin withstanding the bufling and pulling stresses in a wooden car.

With the above described construction wooden cars can be effectively repaired and strengthened without tearing out the wooden center sills, thus eliminating the injury to the underframe and the car incidental to removing said center sills. Among other advantages may be mentioned -the saving in the cost of both labor and materials by reason of the utilizing of the wooden center sills, the saving of taking them down, the lessening of the'destruction of the floor and underframe, the saving of nailing strips for the floor, which must be supplied if steel beams are-substituted for the wooden center sills, and reducing. the weight of the steel members by approximately six hundred pounds. still' retaining the same strength in the under-frame. by using lighter steel reinforcing frames bolted to the wooden center sills, in place of the heavier all steel center sills heretofore used for this purpose. Furthermore, this method makes it possible to use the old draft rigging and couplers, which are taken off the cars when all steel center sills are substituted for the wood sills; this results in a substantial saving in cost.

\Vhile Z bars are well adapted for the reinforcing of the center sills, other forms of bars may be advantageously used. F urthermore, this construction affords far greater rigidity and strength in the underframe than is obtained by the use of all steel center sills. and thus adapts it the better to withstand the bufling strain or compression as well as the pulling strains. The center members naturally receive the great.- est strains, and this structure possesses not only the strength of the wooden center sills,

but of: the longitudinal steel reinforcements, and the cross ties L, which insure the combined support of the-four center members, as well/ as the reinforcement of the needle beam ties which connect all'the longitudinal sills. Moreover, the buffer blocks and sills, bolsters, and needle beams are all fastened together by being fastened to the steel reinforcing frameflwhich extends from end to end of the car.

This structure afl'ords an exceptionally rigid and strong-construction, adapted to withstand the severe stresses incidental to modern railway service, which can be readily applied to'either old or new cars having wooden underframes, and which is not only cheaper but better than structures where the cured to the side of, and the flange extend ing underneath, its center sill, and a series of metal cross ties rigidly connecting said reinforcing bars.

v 2. A reinforced Wooden underframe for railway cars, comprising wooden center sills,

and metal reinforcing sills, and metal reinforcing bars secured tosaid center sills and extending substantially from end to end the-eof, each reinforcing bar #con sistingof a Z-bar, the vertical Web of which is secured to the sides of its center sill and the lower flange of which extends underneath its center sill, while the upper flange extends laterally from the side of its center sill.

3. A reinforced wooden underf ame for railway cars, comprising wooden center sills, and metal reinforcing bars secured to said center sills and extending substantially from end to end thereof, each reinforcing bar consisting of a Z-bar, the vertical web of which is secured to the outer side of its center sill. and the lower flange of which extends inward underneath its center sill, while the upper flange extends laterally outward from the side of its center sill.

4. A reinforced wooden underframe for railway cars, comprising wooden center sills, and metal reinforcing bars secured to said center sills and extending substantiallv from end to 'end thereof, each reinforcing bar having a vertical web -and a horizontal flange, the vertical web of each bar being secured to the outer side of. and the flange extend ng inward underneath. its center sill,

an angle bar secured to the side of the vertical' web of each reinfo cing bar near the end, with its flange extending outwardly opllO and also to the .under sides of the flanges of said angle ba'rs. Signed by me at Laconia, Ne" shire, this 14th day of July 1914.

PETER M. KLING.

Witnesses: C. W. HICKS,

F. H. CARPENTER.

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